Do you want to install the server software ?
What version of sql server 2000 are you trying to install ? Some versions are not meant to be installed on a client operating system, so if you try to install Enterprise edition, you will get a message saying that you can install only the client software.
Its always better to go through the system requirement before attempting to install anything on computer.
Request you to take a look at official Microsoft website link below
SQL Server System requirement
MS Excel help